Coil-winding machine.



H. S.HUMPHREY.

COIL WINDING MACHINE.

APPLICATION FILED mAYat, 1913 1,165,779. Patented Dec. 8,1915

3 SHEETS-SHEET H. S. HUMPHREY.

COIL wmnma MACHINE.

APPLICATION FILED MAY 31, 1913.

1,165,779 Patented Dec. 28, 1915.

3 SHEETSSHEET 2.

H. S. HUMPHREY. C0| L WINDING MACHINE. APPLICATION man MAY 31, 1913.

1,165,779. Patenfed Dec. 1915.

3SHEETS v a.

. nnniinnrr estima e, or nntemnnoo, MICHIGAN.

"foam-WINDING trncnmn 1,165'779... I M Specification ofLettersPatent. PamnmdDec 28,1915

App1icationfiledMayiil,1913. SrialNo. 771,057. f To-a ll'who'mit may cohcemr spondingto line 5--5 of Fig. IV. V1 p Beit known that I, HERBERT S. Hn i- 1s a detail plan view showing a form for 'r'HnnY, acitizen ot-the UIllllBCl States, residproducing cylindrical coils as distinguished ing at Kalamazoo, Mich gan, have invented from helical coils. Fig. V11 1 d t il v certain 'nevvand useful I provements 1n tical section on a line corresponding to line 60 .Coil-Winding Machines,- 0 which the fol- 7-7 of Fig. Vi. Fig. VH1 is an enlarged lowing is "a specification. detail perspective of the pipe clamp. Fig.

This invention relates to improvements in TX is a detail vertical section on a line corcoilvvinding machines. responding to line 9-4) of Fig. VI, showing 1'0 My'improvements'are especially designed a pipe or tube secured by the clamp and also 65 by me for' use'in the manufacture of coils showing the operative relation of the manforwate'r heaters, and I. have shown my inidrel and form. Fig. X is anend view of provements embodied in a machine for that the pipe or tube with the mandrel therein.

purpose. M improvements'may, however, Fig. X1 is an enlargeddetail section through bereadily adapted'or embodiedin a machine the feed screw, on a line corresponding to 70 for" forming tubular coils for various purline ll-1l of Fig. VI. Fig. XIIis a vertijoses. cal. section corresponding to that of Fig. IX, 7 The main objects of thisinvention are: showing a modified form of mandrel, the First, to prov'ide'a'n improved coilwinding modification being in'the shape of the end machine means of which tubular coils of the mandrel. Fig. XHT is a similar ver- 7 may be :rapidly and accurately produced. tioal section showing a further modification Second, to provide an'nnproved coil wind of the mandrel. ing machine by means of which double lieli- In the drawing similar reference characany coiled tubular coils may be'efiectively ters refer to similar-parts throughout the produced. Third, to provide an improvedseveral views, and the sectional views are 80 'fcoil Winding machine which is oiilargecataken looking in the direction of the little pacity and maybe successfully operated by arrows at the ends of the section lines. an unskilled Workman. Fourth, to provide Referring to the drawing, the frame 1 is -.'animproved coil winding 'ma'chine which is provided \vith'a way 2 for the carriage 3.

39 i ple in structure and. at the same'time The driving shai't {l is supported in suitable very durable. hearings on the frame, whilethe carriage J Further object's, and objects relating to is provided with ashaft or spindle 5 in axial structural danrswnraenmmw appear from alinement with the shaft 4:.

I the, detailed description to follow.- The form shown in Fig.1 is especially de- 35. v I accomplish the objects of my invention signed for use in the manufacture of double a by'the devices and means described in'the- 'helically coiled coils. The form comprises I following speci cation.

7 a pair-of opposed conical sections 6 and 7 The invention is clearly defined and pointhaving spiral grooves 8 therein. The sec- ,ed out in the claims. i V 7 tion (5 is secured to the shaft 4, While thesec- 40' 1 structure whichis a preferred embodi 'tion 7 is mounted on the shaft" or spindlefi.- ment"-o f. my, ention is clearly illustrated The shaft 5, when the sections are brought in the accomp drawing" forming a end to end, as shown, is adapted to extend vpaht-oii this specification, in which: i into the section 6, thus assisting in supporti i Figure I v s. detail planview or a strucing and alining the sections.- The carriage 3 45-,ture[emb odyirig ithe features of my invenis adjustably secured onits way bymeans o 00 tion,'iftheframe and drivingconnectionsheing the clamp 9. The carriage and. rays are showdmainly in conventional form. Figll shown in conventional form only-as their is; a detail side. elevation looking from the details form no part'of this invention. The

i left of Fig. -I. Fig-.111 is a detail vertical shaft 4 is provided with pulleys 10, 11 and dbi lar 'g ed detail vertical section on a line correghends as it IS Wrapped aroun the form.

I 0 section talren one line corresponding to line 12,1111 fixed to rotate therewith. The man- .3-3 .OfFIg. I. Fig IV is a detail vertical drel 13 is supported by the rod 1e whichis section-taken on a linelcorresponding to line I pivoted at 15 at the rear of the form. This oi- Fig. 1-,.showiixg details of the pipe rod is disposed so that the end of the manstraightening feed rollers. Fig. i7 is'an endrel is supported at the point where the pipe I ,vantage to provide the same with 'coact 'withthe rear .side of the This effectively prevents bending 26 and 27 are i porting the rod. It will be observed, that, in

helical coils. The pipe 2:")

mandrel is provided with a spherical end 16, in' the preferred construction, and this is found to effectively support the walls of-the tube so that they do not collapse as the tube or pipe is wrapped about the form.

In t

rod 14 is of such length that the position of the mandrelrelativeto the form is not varied in an objectionable degree. Vhere a shorter rod 17 is use v as in the embodiment shown in Fig. V I a to vd screw 18 is provided. This feed screw is supported in suitable bearings l9 and is connected by the belt 20 to the pulley 11 on the shaft 4.

The rod 17 is provided with a yoke 21 whichis connected by means of the pivots 22 to the half-nut 23, the nut being adapted to screw sothat when the rod is drawn forward the nut engages and when the rod is pushed back the nut is disengaged. The yoke is of'advantage for two purposes: First, it permits the ready disengaging of the nut from the screw, and, further, it permits the mandrel being withdrawn from the end of the tube forming the coil, so that coils may be formed with strai ht ends.

Where the long rod 14 is useo, it is of ada supporttelescopes. or flexing of the mandrel rod and the pipe 25. Rests also provided to assist in sun ing tube 24 into which the pipe the structureillustrated, the rod is supported substantially tangentially to the form.

The form 28, shown in Figs. VI and VIII, is cylindrical, and provided with a spiral groove 2 and is used when it is desired to form cylindricalcoils as distinguished from to be coiled, is Secured to the formby means of the clamp shown in detail in Fig. VIII, consisting of the clamp member 30 mounted on the stud 31, and held yieldingly'upward by means of the spring 32. The eccentric 33 is pivoted at 34 on the stud so that by swinging the eccenstraightening device grooved rollers 35 trio the clamp is forced down upon the pipe as shown in Fig, IX. f In setting the machine, the clamp is engaged on the pipe, directly over the end of the mandrel. Suitable means forsto ping and starting the form shaft are providied.

he pipe is straightened'and fed from the mandrel onto the supporting rod'14 by. a consisting of sets of and 36, the-rollers 35 bethe shaft 37 ing thedriven or feed rollers,

to the pulley being connected by the belt 38 12 on the shaft 4.

. The "roller shaft 39 is connected by the gears 40 to the shaft j usted by means of the screws 41. The" clutch 42 is provided forth pulley 43 for the belt 38, the clutch being actuated by means of the he embodiment shown in Fig. I the practice soap or other 37. The shaft 37 is'adlever 44. Between the sets of grooved rollers 35 and 36 is a straightening tube 45 which is supported by a rod 46 at its front end. The

tube or pipe to be straightened is introduced short In the modification shown in Fig. XII,

the mandrel -l7 is provided with a curved end -18, ii'sx; curvature being such that it forms tln; :1 or of a circle concentric with the curve of the form. The mandrel having the spherical end is, however, preferred, as it is mo e easily produced and r at any diameter. The mandrel has a if desired to make it slip freely within the tube .In the'modification shown in Fig. XIII, a a spherical mandrel 49 is shown.

By means of my improved machine, I am able to produce coils very rapidly and the machine may be operated by unskil men. It has been quite common practice to fill the pipe with the walls, as it is wound upon the forms. This entails a great deal of labor and ne cessitates the rattlin of the sand from the coils and cleaning t ecoils with considerable care, as, coil used for a water heater, nucleus for a deposit of lime and is highly objectionable. my improvements, I am able to uniform coils and also very rapidly and e'c0- nomically.

I have illustrated various parts largely in conventional form as such parts are not important to an understanding of In By means of may be used one.

sliding fit within the tube or pipe and in material may be used sand in order to support if any sand is left withintheit forms the and sediment roduce very invenled worlo tion and may be designed as conditions or I taste may dictate. I havei lustrated and descri (1 my im rovements in a form in which I have embodied them in practice.

ile various modifications other than those. I have illustrated and described are possible, I do not undertake to describe such various modifications or changes, as I believe the dlsclosure made is su'flicient understanding of my invention. I desire, however, to be understood as claiming my improvements specifically in the form illus trated as well as broadly within the scope of the appended claims. Having thus describedmy invention, what for aclear I claim as new and desire to secure by Let- I ters Patent is:

1. In a' coil'forming machine, the combination of a form comprising opposed conical sections having spiral grooves therein,

' a driving shaft on; which one of the said secthe-mandrel is sup thereto.

tions is mounted, a-carriage provided with a shaft for the other section whereby the sections'may be separated or brought end to end into'cooperating relation, the shaft on saidcarriage extending into the .formsection on the: driving shaft when the sections are brought together, a mandrel having a curved end, said mandrel having asliding,

fit within the pipe to be coiled, a mandrel su "porting rod adapted to receive the pipe r B end so that-the end 0:

supported at its rear orted in substantially the storm axis, and a section on the driving the vertical. plane 0 clamp on the form shaft for securing 2 in a coil iformingniachine, the combihation of aform comprising opposed conical sections having spiral grooves therein,

a driving shaft on which one of the'said sec-u "tions is mounted, a carriage; provided with a shaft for the other. section whereby the sections may be separated ior brought end to end into cofiperating'relation, a mandrel having a curved end, saidmandrel having a sliding fit within the pipe to be coiled ,'a mandrel supportin rod adapted to. receive the pipe, supporte stantially the vertical pl ane of the form axis,

and a clamp on the form. section on the driving shaft for securing the end of the pipe thereto.

3. In a coil forming machine, the combination'of a form comprising opposed conical sections having spiral grooves therein,

.a driving shaft on wh'ch one "of the said.

sections is mounted, acarriage providedwith a shaft for the other section'whereby the sections may be separated or brought end to end intocoiiperating relation, the

shaft on said carriage extending into the. -'form section on the drivlng shaft when the sections are brought together, a mandrel,

and amandrel supporting rod adapted to receive the pipe.

4. In a coil forming machine, the combination of a form comprising opposed .cal sections having spiral groovestherein, a driving shaft on which one of the said sections is mounted, a carriage provided with 'a shaft forcthe other section whereby the sections may be separated or brought end to endinto cooperating relation, a mandrel, and a mandrel supportlng rod adapted to receive. the pipe. V

5. In a coil forming machine, the combination of a spirallygrooved rotatableform,..

a mandrel having a spherically curved end,

gentially of the stantially in an the end of the pipe.

substantiall at its rear end so that the end of the mandrel is supported-in subconination of a rotatablesaid mandrel having a sliding fit within the pipe to be coiled,

a mandrel supporting rod.

adapted to receive the pipe, disposed tan I form and pivotally supported at its rear end so that the end of the mandrel is supported to be movedsub axial plane of the form, and i a clampon the form for securing theend of the pipe thereto.

6. In a coil forming machine, the combination of a rotatableform, a rigid mandrel, a mandrel supporting rod adapted to receive the pipe, disposed tangentially of the form and pivotally supported at its rear end so that the end of the mandrel is supported to be'moved substantiallyin an axial plane of the form, and a clamp on the form for secur-j mg the end of the pipe thereto.

7 In a coil forming machine, nation ofa rotatable form member, a rigid the combi I .71 mandrel-having a spherically curved end,

said mandrel havinga sliding fit within the pipe to be coiled, means form longitudinally'thereof withits .end

v in the vertical axi of the orm, and means for securing the end of tliepipe to the form member.

8. In a coil forming machine, the combination of a rotatable form member, a rigid mandrel having a curved end, means supporting said mandrel so that it may be for I I D for supporting said 1 Lmandrel so thatit maybe moved above the" J1. plane ofthemoved longitudinally of the form with its end substantially at the point the pipe curved as it is wrap ed upon the form, and means for securing t e end of the pipe to the form member.

9. In a coil forming machine, the combination of a rotatableiorm member, and a rigid mandrel havin a curved end, said mandrel havin a sliding -tit within the pipe tob'e coiled a being supported to en port the walls otfhe pipe as the same is rawn rem t-he mapdrel and coiled about the form by therotatio'n of the form;

10. In a coil forming machine, the combination of a rotatable formmeinber, rigid mandrel having a. curved end, said mandrel having a sliding fitwithin the pipe to be coiled and being sup rted to en port the walls of the pipe as t e same is rawn and a,

from the mandrel and coiled about the form. 11'. In a coil forming machine, the combia rigid being supported by said rod so lthat its end the withdrawal of the mandrel from said mandrel is substantially at the point the pipe is curved asit is Wrapped about said form.

' 13. In a structure of the class described, the combination with a rotatable form member, a mandrel, a supporting rod for said mandrel, said rod being pivotally mounted at its rear end, a tube on said rod adapted to receive the pipe, the mandrel and front end of the rod projecting from said tube, and rests for said supporting rod and tube.

14. In a structure of the class described, the combination with a rotatable form member, a mandrel, a supporting rod for said mandrel, and a tubeon said rod adapted to receive the pipe, the mandrel and front end of the rod projecting from said tube.

'15. In a structure of the class described, the combination of a mandrel, a supporting rod for said mandrel, a tube on said rod, the mandrel and front end of the rod projecting from said tube,'n1eans for straightening a pipe and delivering it onto said rod over said mandrel. comprising pairs of spaced grooved feed rollers, a straightening tube arranged between the pairs of feed rollers so that the pipe is delivered therethrough by the feed a and rests for said rollers and onto the mandrelsupportingrod, supporting rod and tube. 16. In a structure of the class described,

.the combination of .a mandrel, a supporting rod for said mandrel, means for straightening a pipe and delivering it onto said rod over said mandrel spaced grooved feed rollers, and a straightening tube arranged between the paired feed rollers so that thepipe is delivered therethrough by the mandrel-supporting rod. 7

17. In a coil forming machine, the combination of a mandrel and a pipe straightening device comprising feed rollers and a tube through which the pipe is delivered by said feed rollers, the straightening device being adaptedto deliver the pipe onto the mandrel. r I

' In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

Witnesses:

M. PHlNA WOQDRUFF, ANNIE PARRY.

HERBERT S, HUMPHREY; [L. 8.]

comprising pairs of I the feed rollers and onto 

